Home / 141,552.60-195,344.76-81,128.52

Finding the Fourth Proportional to 141,552.60, 195,344.76 and 81,128.52

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Solution

The fourth proportional to 141,552.60, 195,344.76 and 81,128.52 is: 111,958.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,552.60 : 195,344.76 = 81,128.52 : x
  2. Step 2: Convert to fraction form
    141,552.60/195,344.76 = 81,128.52/x
  3. Step 3: Cross multiply
    141,552.60x = 195,344.76 × 81,128.52
  4. Step 4: Simplify right side
    141,552.60x = 15,848,031,268.56
  5. Step 5: Solve for x
    x = 15,848,031,268.56/141,552.60
  6. Step 6: Final answer
    x = 111,958.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.